JPS5740391A - Changeover device for armature winding of motor - Google Patents

Changeover device for armature winding of motor

Info

Publication number
JPS5740391A
JPS5740391A JP55114327A JP11432780A JPS5740391A JP S5740391 A JPS5740391 A JP S5740391A JP 55114327 A JP55114327 A JP 55114327A JP 11432780 A JP11432780 A JP 11432780A JP S5740391 A JPS5740391 A JP S5740391A
Authority
JP
Japan
Prior art keywords
armature winding
motor
voltage
relay
relay coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55114327A
Other languages
Japanese (ja)
Other versions
JPS6238958B2 (en
Inventor
Ryohei Uchida
Tatsuo Yamazaki
Sadanobu Kawabe
Yoshihito Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55114327A priority Critical patent/JPS5740391A/en
Publication of JPS5740391A publication Critical patent/JPS5740391A/en
Publication of JPS6238958B2 publication Critical patent/JPS6238958B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/24—Arrangements for stopping

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To protect a contact of a relay circuit for changing over the armature winding of the motor, and to shorten deceleration time by opening one end of the armature winding for high speed after back electromotive force is minimized sufficiently when one end of the armature winding for low speed is short-circuited. CONSTITUTION:When the motor shifts to revolution at low speed from operation at high speed, conduction to each armature winding 1U-1W from a drive circuit 7 is stopped, and the application of DC voltage to changeover signal input terminals 10, 11 is also stopped. A relay coil 6 is de-energized instantaneously, and constantly- closed contacts 41, 42 return to on. Accordingly, the charging charge of a capacitor 9 flows into a relay coil 5 owing to the obstruction of discharge to the terminal 10 by means of a diode 8, and conduction currents decrease at a time constant by the capacity of the capacitor 9 and a resistance section of the coil 5. Constantly-opened contacts 31, 32 hold on until the voltage of the relay coil 5 lowers to return voltage. The motor is generation-braked because a closed loop is formed to a B side section of the relay circuit from the intermediate taps 2U-2W of the winding 1U-1W during the on period.
JP55114327A 1980-08-18 1980-08-18 Changeover device for armature winding of motor Granted JPS5740391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55114327A JPS5740391A (en) 1980-08-18 1980-08-18 Changeover device for armature winding of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55114327A JPS5740391A (en) 1980-08-18 1980-08-18 Changeover device for armature winding of motor

Publications (2)

Publication Number Publication Date
JPS5740391A true JPS5740391A (en) 1982-03-05
JPS6238958B2 JPS6238958B2 (en) 1987-08-20

Family

ID=14635042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55114327A Granted JPS5740391A (en) 1980-08-18 1980-08-18 Changeover device for armature winding of motor

Country Status (1)

Country Link
JP (1) JPS5740391A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084445A (en) * 1983-10-17 1985-05-13 Nissan Motor Co Ltd Multistage speed change gear
JP2008005969A (en) * 2006-06-28 2008-01-17 Noritz Corp Bathroom with function of preventing water immersion to recessed part

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01315231A (en) * 1988-06-14 1989-12-20 Fanuc Ltd Coil winding structure for ac motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084445A (en) * 1983-10-17 1985-05-13 Nissan Motor Co Ltd Multistage speed change gear
JP2008005969A (en) * 2006-06-28 2008-01-17 Noritz Corp Bathroom with function of preventing water immersion to recessed part

Also Published As

Publication number Publication date
JPS6238958B2 (en) 1987-08-20

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